15 results about "Rotation cycle" patented technology

According to the rotating circulating type large cover plate upper and lower surface detection device, a tool table comprises a rotating disc and positioning tools, and the two positioning tools are arranged on the front side and the rear side of the upper surface of the rotating disc in a transverse central symmetry mode; the displacement detection equipment comprises a supporting stand column, a main moving guide rail, a translation motor, a translation longitudinal rod, a passive guide rail and a detection moving rod, and by using the rotary double-positioning tool and the movable upper and lower double-surface detection equipment, positioning assembly of an outer side front prevention cover plate and synchronous detection of the upper and lower surfaces of an inner side rear surface are realized; and after completion of detection, rotation and alternation are carried out, so that efficient detection and loading and unloading operation are realized, the production efficiency is effectively improved, the time for mounting, dismounting and positioning of the positioning tool is shortened, and detection, loading and unloading can be carried out at the same time.

The invention discloses a multi-product high-speed transfer device, which relates to the technical field of automatic equipment and comprises a transfer frame and a plurality of groups of clamp mounting positions fixedly arranged on one side of the transfer frame. The problem of complex program mechanism matching operation of a conventional transfer module is solved, a cam mechanism composed of two sets of Y-axis cams and a set of X-axis cams is adopted, one power meets the grabbing and releasing action of the whole set, cam curves and the length of a steering connecting rod need to be matched with the station interval, it is ensured that the carrying distance is consistent every time, deviation to a third station is avoided, the action matching time is saved, and the working efficiency is improved. The X-axis movement amount of the mechanism is adjusted in a mechanism mode, the rotation period of the cam needs to be synchronous with the taking-placing-returning action of the clamping jaw, continuous operation of an assembly line is guaranteed, deviation caused by sensor abnormity is avoided, the mechanism is more stable and reliable, modular design is achieved, corresponding clamps or suction heads can be replaced according to different scene application requirements, multiple purposes are achieved, and cost is reduced.

A multi-circle angular displacement measuring device based on a single gear structure comprises a shell, a rotating shaft, a driving wheel, a driven wheel, magnetic steel, a deep groove ball bearing, a circuit board and a Hall chip. Three deep groove ball bearings are respectively mounted in holes in the upper and lower end faces of the bottom of the shell; the small-section end of the rotating shaft penetrates through the first deep groove ball bearing and the second deep groove ball bearing, and the root of the rotating shaft is inserted into a mounting hole of the driving wheel. The driving wheel is fixed with the inner ring of the deep groove ball bearing II; the first magnetic steel is installed in a groove of the driving wheel. A driven wheel is fixed with an inner ring of the deep groove ball bearing III, and teeth of the driven wheel are meshed with teeth of the driving wheel; the second magnetic steel is installed in a groove of the driven wheel. The circuit board is arranged on a boss in the shell; the first Hall chip and the second Hall chip are installed on the circuit board and axially correspond to the first magnetic steel and the second magnetic steel respectively. The device is high in vibration resistance, small in accumulative error, high in positioning precision, absolute in mechanical measurement, capable of achieving real absolute multi-circle angle measurement and capable of being used for application needing to track multiple rotation periods.

The invention relates to a control method and device for a continuous flying shear turning device and electronic equipment. The method comprises the steps that the movement time needed by the turning device to move from an initial position to a shearing position and the shear blade rotation period of a flying shear are determined; calculating a shear blade angle for triggering the turning device to act based on the movement time and the shear blade rotation period; the actual rotation angle of the flying shear cutter is monitored in real time; in response to the fact that the actual rotation angle reaches the shear blade angle, a starting instruction is sent to the turning device. According to the method, the movement time required by the turning device to move to the shearing position is obtained, and the shear blade rotation period of the flying shear is synchronously obtained, so that the shear blade angle for accurately triggering the turning device to act is calculated, and then the actual rotation angle of the cutterhead is monitored in real time, and the starting instruction is immediately sent out when the set angle is reached; by accurately calculating an angle trigger signal, the inherent time delay of mechanical motion and system control of the turning device is actively compensated, and finally the problem of steel heaping caused by inaccurate shearing time is effectively solved.

A method for diagnosing a fault of a rotating motor comprises: obtaining a time-domain acceleration signal of the rotating motor along a vibration direction and a rotation period (210) of the rotating motor; converting the time-domain acceleration signal into a time-domain velocity signal, cutting out a plurality of velocity signal segments along the time-domain velocity signal with the rotation period as a step length, and sequentially arranging the plurality of velocity signal segments to obtain a velocity signal matrix (220); converting the velocity signal matrix into an image (230); and inputting the image into a trained neural network model to obtain a fault diagnosis result (240). The method converts the fault diagnosis problem into an image recognition problem by converting the velocity signal matrix into an image and inputting the image into the trained neural network model to obtain a fault diagnosis result. The method is applicable to image-oriented neural network models and improves the efficiency and accuracy of fault diagnosis.

The invention relates to a method for predicting a theoretical moment when a blade without a rotating speed signal reaches a blade tip timing probe. The method comprises the steps of obtaining the actual arrival time of N blades reaching m blade tip timing probes in the circumferential direction of the blades, obtaining the rotating shaft rotating speed value in a vibration-free state through reconstruction based on the actual arrival time of the N blades, and reconstructing the theoretical time value of the N blades reaching the m blade tip timing probes according to the rotating shaft rotating speed value. According to the method, the stability of data measurement in the aero-engine vibration experiment can be improved, the requirement for the experiment environment is reduced, a vibration measurement system can be simplified, and the method has important practical application value in the development process of aero-engines.

This invention relates to a device and method for preventing steel from sticking to the surface of rail rolls, belonging to the field of rail rolling technology in the metallurgical industry. The technical solution is as follows: a guide plate (1) and a scraper (2) are fixed to the mill beam (5) by bolts (3) and washers (4). One side of the scraper (2) contacts the roll pass. One side of the guide plate (1) has an inclined surface (6), the slope of which in the vertical direction is consistent with the slope of the roll leg pass. The guide plate (1) has a rectangular groove (7) that matches the mill beam (5) and a threaded hole (8) that matches the bolt (3). The scraper (2) has a rectangular hole (9) that matches the bolt (3). The beneficial effects of this invention are: it can assist in the straightening of the workpiece during the bite-in stage by the guide plate, reducing the direct impact of the workpiece on the roll; and in the next rotation cycle after steel sticking occurs on the roll, the scraper removes the steel stuck to the roll surface.

The application discloses a multi-rotation cycle spinning cylinder assembling method, and belongs to the technical field of spinning manufacturing; the assembling method uses an assembling ring and a discharging fork on a spinning roller seat to realize quick assembling. The assembling method is as follows: a process head end of a cylinder after heat treatment is sleeved on a spinning core mold, so that the inner diameter of the process head end is attached to the outer diameter of the spinning core mold; the assembling ring is sleeved on the outer diameter of the cylinder, so that one end surface of the assembling ring is in contact with the process head end surface of a spinning roller stop position; the axial position of the discharging fork on the spinning roller seat is adjusted, so that the discharging fork is close to the outer end surface of the assembling ring; the spinning roller seat is moved along the cylinder mounting direction, the assembling ring is pushed by the discharging fork to bring the cylinder into the end of the spinning core mold main shaft, and the assembling is completed. The application solves the problems of assembling difficulty, time consumption and labor intensity in the process of assembling the deformed spinning cylinder to the spinning core mold again during multi-rotation cycle spinning.

The present application relates to a kind of double-crank link structure for clamping mandrel, including two clamping posts arranged in horizontal direction, driving mechanism for driving two described clamping posts in vertical plane same direction rotation, the rotation track of two described clamping posts is respectively located in two parallel planes, the rotation track of two described clamping posts is close to one side with overlapping point, and two described clamping posts coincide in each rotation cycle in overlapping point.For the purpose of achieving continuous transport mandrel in prior art, the motion trajectory of clamping equipment is generally arc whole circle, which has the problem of larger swing operation space.

This utility model relates to the technical field of labeling, and more particularly to a servo-driven label-pressing auxiliary mechanism. It includes a servo motor, a sleeve at the bottom of the servo motor, and connecting plates at both ends of the sleeve. One connecting plate on one side of the sleeve is fixed to the bottom of the servo motor. One end of the servo motor has an output end located inside the sleeve. A first half-coupling is located inside the sleeve, and one end of the output end is connected to the first half-coupling. A second half-coupling is connected to the bottom of the first half-coupling, and an intermediate shaft is located in the second half-coupling. The intermediate shaft is coaxial with the output end, and a label-pressing roller is located on the outer side of the intermediate shaft. This utility model provides a servo-driven label-pressing auxiliary mechanism. By setting a servo motor to drive the label-pressing roller to rotate, when dealing with relatively tall labels, the rotation cycle of the label-pressing roller is the same as the rotation cycle of the label-cutting roller, causing the protruding part of the label-pressing roller to press down on the label, preventing uncut labels from being dragged.

The invention discloses a non-contact torsion angle gamma, torque T, rotating speed n, angular acceleration beta and vibration characteristic multi-parameter measurement system and method based on a co-collimation double-color scattered confocal technology. The measurement system is composed of a controller, a co-collimation double-color scattered confocal module and two radius coding auxiliary rings. A wide-spectrum light source, a spectrum demodulation device, a torque and rotating speed calculation module and the like are arranged in the controller. The double-color-dispersion confocal module shares the collimation light path and the confocal small hole. The outer diameter h of the radius coding auxiliary ring linearly increases along the circumferential angle # imgabs0 #. The torque angle and the torque of the shaft are calculated by the focal light wavelength lambda i and the wavelength difference delta lambda i variation received by the double-color-dispersion confocal module, the geometric parameters of the shaft and the shear elastic modulus G, and the rotating speed, the angular acceleration and the vibration characteristic of the shaft are calculated by utilizing the rotating periodicity of the auxiliary ring. The method has the characteristics of non-contact type, high precision, no electromagnetic interference, strong environmental adaptability and the like, and is expected to be used for main shaft torque measurement and intelligent control decision of precision machinery such as motors, engines, machine tools and the like.

The utility model relates to an electric tuning rotating shaft sleeve for a contrabass, which can effectively solve the problems that the number of tuning rotation cycles of an existing worm and gear structure is greatly increased and the tuning efficiency is reduced, and adopts the technical scheme that a half shaft coaxial with the center of a cylindrical shell is arranged at the bottom of the cylindrical shell; a cavity matched with a tuning knob of the contrabass is arranged in the cylindrical shell, the cross section of the lower half part of the cavity is a long and narrow rectangle, the cross section of the upper half part of the cavity is a coaxial round hole expanded at the center of the long and narrow rectangle, the diameter of the round hole is larger than that of the short edge of the long and narrow rectangle, and the round hole is matched with a shaft of the tuning knob of the contrabass; according to the utility model, the tuning of the contrabass is time-saving and labor-saving, the tuning efficiency is greatly improved, the elastic buffer layer is laid in the cavity, the rigid contact between the tuning button of the contrabass and the electric tuning rotating shaft sleeve is avoided, the tuning process is stable and smooth, the tuning effect is optimized, and the electric tuning rotating shaft sleeve for the contrabass is an innovation of the electric tuning rotating shaft sleeve for the contrabass.

The invention relates to the technical field of vibration testing of structural components, in particular to a part vibration testing method for mechanical part machining, which comprises the following steps of: acquiring the rotation frequency and the tooth number of each gear, a box body vibration time domain waveform image and a difference value envelope line corresponding to the box body vibration time domain waveform image; the probability that the difference envelope line of each gear in each rotation period meets periodicity and the abnormal performance degree of each gear are calculated; a plurality of insertion points are selected on the difference envelope line of each meshing period of each gear, and the updating probability that each gear has swash vibration in each meshing period in each rotation period and the final abnormal performance degree of each gear are obtained; and a plurality of eccentric gears are further screened out from all the gears. According to the method, the impact oscillation caused by external factors to the normal gear is subjected to characteristic analysis, and the influence of the impact oscillation of the normal gear to the abnormal performance degree of the gear is eliminated. And the accuracy of gear detection is improved.

Disclosed are a refrigerated mixing assembly, an operation method, an operation system, and a storage medium thereof, the operation method includes: determining an operation mode and a production completion condition of the refrigerated mixing assembly in response to a mode selection operation of the refrigerated mixing assembly; setting a motor rotation scheme of the refrigerated mixing assembly according to the operation mode, a ratio of the reverse rotation duration to the forward rotation duration is within a preset range; determining a set temperature of the refrigerated mixing assembly from the operation mode; controlling operation of a stirring motor according to the motor rotation scheme, and controlling operation of an evaporator according to the set temperature, each rotation cycle of the stirring motor includes at least one forward rotation and one reverse rotation; and generating a production completion signal upon satisfaction of the production completion condition.

To provide a technique for improving the reliability of an encoder to detect malfunction.SOLUTION: The encoder detects angular displacement of rotation axis of a motor, and comprises: a first detection section including a power generation element; a second detection section detecting the center of one rotation in the rotation axis by an optical pattern; and a control section detecting whether at least any of the first detection section or the second detection section has malfunction on the basis of output of the second detection section generated by the power generation element.SELECTED DRAWING: Figure 7